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Finding the Fourth Proportional to 260,577.68, 390,923.92 and 148,310.76

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Solution

The fourth proportional to 260,577.68, 390,923.92 and 148,310.76 is: 222,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,577.68 : 390,923.92 = 148,310.76 : x
  2. Step 2: Convert to fraction form
    260,577.68/390,923.92 = 148,310.76/x
  3. Step 3: Cross multiply
    260,577.68x = 390,923.92 × 148,310.76
  4. Step 4: Simplify right side
    260,577.68x = 57,978,223,677.38
  5. Step 5: Solve for x
    x = 57,978,223,677.38/260,577.68
  6. Step 6: Final answer
    x = 222,498.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.